Thread: Bullet jump 123 gr. SST in 6.5 Grendel

Originally Posted by Mathias

First of all find the best load at the length you are using now and then try varying the OAL and see if there is any improvement. I run the same bullet powder combo in my Grendel (Sako) at 2.297" (58.36mm)

Thanks - do you know how far off the lands you are at that length ?

Originally Posted by Pete_D

Thanks - do you know how far off the lands you are at that length ?

Sorry don't have it listed in my load book. This length works best in my mag too. There are a few different specs for the Grendel chamber, mine will be different to yours.

Originally Posted by Mathias

Sorry don't have it listed in my load book. This length works best in my mag too. There are a few different specs for the Grendel chamber, mine will be different to yours.

No worries - out of interest what's your powder charge with 8208 - there seems to be quite a bit of variation amongst published data for 123 gr. bullets.

Originally Posted by Pete_D

No worries - out of interest what's your powder charge with 8208 - there seems to be quite a bit of variation amongst published data for 123 gr. bullets.

The sweet spot it seems, with the Grendel and this powder is in the 28-28.5gr with 123gr Hornady's. I'm at 28.2 with Lapua brass and a 17" barrel for an average of 2422fps. I use a CCI BR4 primer.

Originally Posted by Mathias

The sweet spot it seems, with the Grendel and this powder is in the 28-28.5gr with 123gr Hornady's. I'm at 28.2 with Lapua brass and a 17" barrel for an average of 2422fps. I use a CCI BR4 primer.

I run a very similar cartridge in that its a 6.5mm and holds around the same powder charges.
Mine has 24 inch barrel. I get slightly more velocity (150fps) than you with 27.5gns 8208, its my most used rifle by a long long way. Had a Factory Grendel bolt action been available at the time I would have gone that way.

FWIW 123gn Eld-M's loose their accuracy past 700m but pretty good till then, Laupua 123's are good to 900-1000m (shooting steel) and my self imposed limit on game is 300 or less (this seems to be about normal for 6.5 shooting 120-123gns projectiles around these velocities as my good mates Grendel is very similar / same